Steam-boiler



(No Model.)

W. D. RICH.

STEAM` BOILER.

'Patented Apr. l2, 1887.

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UNITED STATES PATENT OFFICE.

WILLIAM D. RICH, OF PHILADELPHIA, PENNSYLVANIA.

STEAM-BOILER.

SPECIFICATION forming pari: of Letters Patent No. 361,083, dated April12, 1887.

Application tiled January 27, 1887. Serial No. 225,638.

.To all whom it may concern:

Be it known that I, WILLIAM D. RICH, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvenient in Steam-Boilers, whichimprovement is fully set forth in the following specilication andaccompanying drawings, in which- Figure l represents a horizontalsection in line x m, Fig. 2, of asteam boiler and heater embodying myinvention. Fig. 2 represents a vertical section thereof. Fig. 3represents a top View of an annulus detached. Fig. 4 represents asection in line y y, Fig. 3. Fig. 5 represents a section of a portion inline z z, Fig. l.

Similar letters of reference indicate corresponding parts in the severalgures.

My invention consists of a combined steam boiler and heater which yis ofinexpensive, strong, and durable construction, possesses greatheating-surface, and is economical in the use of fuel, as will behereinafter set forth.

Referring to the drawings, A represents the outer casing formed insectionsv and having the furnace portion B lined with re-brick andcontaining the boiler proper, C, which latter is formed of a shell withsheets at top and bottom, and lues D, extending the length of the shell,connected with said sheets, said boiler passing through a diaphragm orannulus, E, which is supported on the top of the lower section of thecasing A, it being noticed that the boiler is suspended within thefurnace 'B from said annulus and secured to the latter by knees F, whichare riveted or otherwise firmly connected with the annulus and shell ofthe boiler. If desired, a continuous flanged band may be employed inlieu of the knees F.

The annulus E is secured to the casing by means ot' knees G, which areriveted to said casing and attached to the annulus by screwbolts H,which are fitted to the horizontal limbs of said casing and pass throughthe annulus and are connected with the dome or cap J of the casing, saidbolts having jam-nuts K, which may Ibe tightened against the annulus.The dome is secured to the casing by means of the screw-bolts H and thenut K,and thus both dome and casing are iirmly connected to the annulus.It is evident that by first unscrewing the nuts K the dome may bereadily removed and afterward the casing and annulus, as desired.

(No model.)

It will be seen that the products of combustion pass through the ues Dand reach the dome J, from which they are directed to a chimney orelsewhere by a suitable pipe. Some of the products of combustion enterthe space between the shell of the boiler and the surroundingfire-brick, and are temporarily detained by the annulus E, which closesthe top of the said space, whereby the exterior of the boiler,which isexposed to the products of combustion, is highly heated. This action,with the passage of the products of combustion through the lues D,causes the rapid generation of steam with an economical use of fuel. Itwill also be seen that the device is strong and durable, and beingformed of few parts, is thereby of simple and inexpensive construction.

, Having thus described my invention, whatI claim as new, and desire tosecure by Letters Patent, is-

l. A combined boiler and heater consisting of an outer metallic casingcomposed of sections, the lower or furnace portion having a re-bricklining. and the upper portion resting on an annulus, which latter issupported on .knees secured to the walls of thelower portion of thecasing, all substantially as de- Y scribed.

2. In a combined boiler and heater, the sectional casing A, incombination with annulus E, the dome J, and connect-ingfbolts H and nutsK, and the boiler C, said boiler being supported by the said annulus,all substantially as described.

3. A combined boiler and heater consisting of the metallic casing A,composed of two sections, the lower one havinga re-brick lining, theboiler C,with tubes D, the annulus E, supporting boiler C, the knees G,secured to the lower or furnace portion of the outer casing andsustaining annulus E, the dome J, and the connecting-rods H,with nuts KK', all of said part-s being arranged substantially as dei W'ILLIAM D.RICH.

Witnesses:

J orIN A. WIEDEEsHEIM, A. P. GRANT.

IOO

